Core Viewpoint - The winter solstice is a crucial time for health maintenance, emphasizing the importance of "protecting yang and preventing cold" to enhance physical well-being and prevent illness [1][2] Group 1: Health Recommendations - During the winter solstice, it is essential to keep the back and feet warm, suggesting the use of scarves or heating pads to protect the lower back from cold winds [1] - Individuals with cardiovascular issues should avoid exercising outdoors in the early morning when temperatures are lowest, recommending exercise after 10 AM when it is warmer [1] - A suitable winter tonic is recommended, such as "Chestnut Yam Black Chicken Soup," which includes black chicken, yam, chestnuts, and goji berries to nourish qi and blood while supporting the spleen and kidneys [1] Group 2: Home Environment and Lifestyle - It is advised to maintain a home environment that is "warm but not dry, and sheltered but not stuffy," with room temperatures kept between 20 to 22 degrees Celsius [2] - The use of humidifiers or placing water near heating sources is recommended to maintain humidity levels between 40% and 60% to alleviate dryness in the respiratory tract [2] - Gentle and moderate exercise is encouraged during this period, with activities like walking, Tai Chi, and stretching being suitable, while cautioning against vigorous activities in cold weather for those with heart conditions [2]